Combined hot-air screen and deflector



Aug. 30, 1927.

I 1,640,630 F. A. WALLOCH COMBINED HOT AIR SCREEN AND DEFLECTOR FiledJul 8 1926 INVENTOR:

Frail/i A Wad/och ATTOR'NEY device wherein the screen proper frame 6 ofa register Patented Aug. 3O, 1927.

FRANK A. wALLocH, on

SEATTLE, WASHINGTON.

COMBINED HOT-AIR AND DEFLECTOR.

Application filed July 8,

This invention relates-to a combined air screen and deflector and moreparticularly to a device of this character which is designed to beutilized in connection with a register of a hot-air heating system.

An object of the invention is to provide a device, adapted to be appliedto the Wall of a room above a hot-air register, which will serve toscreen hot air passing through the device of dust or solid particles ofsmoke so as to purify the heating medium and safeguard the room wallabove the register from becoming discolored.

Another object is to provide a hot air screening device which willdeflect a current of hot air from the room wall in a manner to mosteffectually utilize the hot air forwarming the room.

A further object is to provide a. screening may be readily removed forcleaning the same.

A still further object is to provide a device for attaining the purposesabove referred to, which is of simple and durable construction,inexpensive to manufacture and of an attractive appearance.

The advantages of the invention will be noted from the followingdescription.

The invention consists in the novel construction, adaptation, andcombination of parts hereinafter described and claimed.

In the accompanying drawing,-

Figure 1 is a view in transverse vertical section illustrating anembodiment of my invention shown applied; Fig. 2 is a front elevat-ionof the device shown detached, the frame members being arranged as theyare shown in Fig. 1; Fig. 3 is a view similar to Fig. 2, with the frameparts in their relatively open positions, the screen element beingomitted from this view; and Fig. f is a fragmentary perspective view ofFig. 3.

In Fig. 1, the reference numeral 5 represents the wall having an openingfor the 7. Provided within the frame 6 is a plate 7 conventionally knownas the register valve, normally 0ccupying the position in which it isrepresented in the view. Thus. arranged, said valve causes the hot airescaping from the duct 8 to be delivered into the room in a general1926. Serial No. 121,158.

upwardly direction, as indicated by the arrow A.

The above referred to parts are or may be of any known or suitableconstruction and arrangement.

According to the present invention I pro- 2 vide tWo frames, indicatedgenerally by 9 and 10 in Figs. 3 and 4E. The frame 9, hereinafterdesignated as the bracket frame, is constructed of companion endelements; each of which being, preferably of an angle shape intransverse section to provide a flange 12 which is disposed in avertical plane, and a flange 13 extending laterally from the inner sideof the flange 12 with respect to the frame as a whole. Each of saidbracket elements is formed to provide the lateral flange 13 with a planevertical lower I portion 13 and'an upper portion of an arcuate shapesubstantially as shown in Figs. 1 and 4t.

Said companion elements areconnected together in spaced apart relationby means of transversely arranged rods 14 Whose ends are rigidlysecured, as by Welding or otherwise, to the flanges 13 of the companionelements.

The spacing apart of the companion elements of the bracket frame is suchthat the flange'parts 13 thereof may be interposed between the roomwall5 and the flange of the register frame, the wall fastenings (not shown)of theregister' frame serving to hold the bracket frame in place.

The second frame 10, hereinafter designated as the grille, consists oftwo side bars 15 which are curved to an arcuate shape and held in spacedapart parallel relation with each other by being Welded or otherwiserigidly secured to the ends of spaced apart transverse rods 16.

Said grille frame is of a width to be inse'rted between the verticalflanges 12 of the bracket frame 9 and has its lower end pivotallyconnected to the flanges 12 as by prolonging the endmost rod, denoted by16 of the series of rods 16, to extend through bearing holes providedtherefor in the flanges 12. Such pivotal connection between the bracketframe 9 and the grille 10 is disposed in proximity to the connection ofthe bracket frame 9 to the register frame and, being thus arranged,permits the grille to be swung into the relatively open position inwhich it is represented in Fig. 4 and by dotted lines 10 in Fig. 1, or'into the position in which it is represented in Fig. 2 and by full linesin Fig. l.

The numeral 17 (Figs. 1 and 2) represents a piece of foraminousmaterial, such as cheese cloth for example, which constitutes the airstrainer of the device. This strainer or screen is placed upon thegrille 10 when the latter is in the open or lowered position in which itis shown in Fig. 3, or by dotted lines in Fig. 1.

Being thus supported upon the grille, the screen is swung upwardlytherewith into position to be clamped between the two frames 9 and 10,as illustrated, inVFig. l. Said frames are secured in such screenclamping relation by means of latches 18,

tions thereof, the remaining part of the current being caused by thecurved shape of the screen, acting as a deflector, to be delivered in apractically horizontal direction into the room, which is most efficientfor room heating purposes. In such travel of the hot air currentsthrough and against the under surface of the screen, particles of dustand other solids are carried by the air are enmeshed in the screenfabric, thereby purifyingthe air and eliminating the main cause of thatobjectionable discoloration of a wall surface so frequently noticeableabove a register. In

such action, the flanges 12 of the bracket frame serve as side walls toprevent the escape of the hot air currents laterally from either side ofthe device.

It is to be noted that the curvature, see Fig. 1, of that portion of thedevice in which the screen is applied is of substantially the shape of aone-fourth of a circular circumference, aform which has proved verysatisfactory for guiding the hot air stream from theregister in ageneral upward and outward direction as it traverses the screen surface.

The screen may be composed of one or more plys or thicknesses of closemesh material, where cheese-cloth of commerce is em ployed, two plysthereof is found to be suitable under ordinary conditions.

connected to the first named frame, and re leasable means engaging saidframe for supporting the second named frame in position to hold a sheetof screening material against the. underside of the first named frame.

2., In a hot-air screening device, a frame having a curved upper portionlocated between two. plane side wall portions, and' lower portionsadapted to be secured by means of the frame of a hot-air register to thesurfaceofa room wall, a second frame having a curvature corresponding tothat or, the curved-portion of the first named frame and of a length toenter the space between the side walls. thereof, and means forreleasably connecting the two frames together for detachably clamping asheet of screening material against the curved portion of the firstnamed frame.

3. A device of the character described, comprisinga curved bracket frameadapted to be secured to the wall of a room, said frame being composedof end elements and transverse elements disposed in spaced apartrelations, a .grille composed of curved end elements and substantiallystraight transverse elements disposed in spaced apart relations, saidgrille being pivotally connected at one edge thereof to thebracketfrarne,

latch devices for releasably securing. the grille to the bracket frame,and a sheet of air-screening material adapted to be clamped between thetransverse elements of the said frame and grille, respectively.

4. A device of the character described, comprising a bracket frameformed of curved end elements, each of which is provided with a flangedisposed in a substantially vertical plane and a second flangeextendinglaterally therefrom, and rods rigid= ly secured at their endsto the lateral flanges of said end elements to retain the latter, inspaced apart relation, a grille frame formed of curvedend elements androds which are.

rigidly 'securedat their ends to the respective end elements, one of thelast named rods as a curve in an upwardly inclined direction therefrom,said frame having flanged end elements, a curved grille frame connectedfor relative movement to the bracket frame and adapted to be employed inthe space between the flanges of said end elements for holding a sheetofscreening material against the con cave under surface of the bracketframe, and means for releasably securing the grille frame in its sheetholding relation to the bracket frame.

6. In a device of the character described, a pair of complementaryframeshingedly connected together at their rear portions, one of saidframes having plane lower portions adapted to be secured to the Wallsurface of a room, the upper portion of such frame and the other framebeing curved toafford thereto convex upper surfaces and concave lowersurfaces and arranged to project outwardly from said wall surface, andmeans for releasably retaining the front portions of the two frames inclosed relation with each other, serving to retain a sheet of screeningmaterial against the concave surface of the upper frame.

Signed at'Seattle, day of May, 1926.

V FRANK A. WALLOCH;

Washington, this 29th the convex surface of the lower frame

